Mercedes-Benz SLK Operator's Manual page 270

Replacing bulbs
268
Halogen lamps contain pressurized gas. A
bulb can explode if you
touch or move it when hot
R
drop the bulb
R
scratch the bulb
R
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
i
Since replacing bulbs is a technically
highly demanding process, we recommend
to have them replaced at an authorized
Mercedes-Benz Center.
i If the headlamps or front fog lamps are
fogged up on the inside as a result of high
humidity, driving the vehicle a distance with
the lights on should clear up the fogging.